103285 has 16 divisors (see below), whose sum is σ = 153216. Its totient is φ = 65088.

The previous prime is 103237. The next prime is 103289. The reversal of 103285 is 582301.

It is a happy number.

103285 is a nontrivial binomial coefficient, being equal to C(455, 2).

It is a cyclic number.

It is not a de Polignac number, because 103285 - 2¹³ = 95093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342 + ... + 568.

It is an arithmetic number, because the mean of its divisors is an integer number (9576).

2¹⁰³²⁸⁵ is an apocalyptic number.

103285 is the 454-th triangular number.

103285 is the 152-nd centered nonagonal number.

It is an amenable number.

103285 is a deficient number, since it is larger than the sum of its proper divisors (49931).

103285 is a wasteful number, since it uses less digits than its factorization.

103285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 103285 is about 321.3798375754. The cubic root of 103285 is about 46.9186763285.

Adding to 103285 its reverse (582301), we get a palindrome (685586).

The spelling of 103285 in words is "one hundred three thousand, two hundred eighty-five".